#include <riscv/sbi.h>

struct sbiret __sbi_ecall(unsigned long arg0, unsigned long arg1,
                          unsigned long arg2, unsigned long arg3,
                          unsigned long arg4, unsigned long arg5,
                          int fid, int ext)
{
    struct sbiret ret;

    register uintptr_t a0 asm("a0") = (uintptr_t)(arg0);
    register uintptr_t a1 asm("a1") = (uintptr_t)(arg1);
    register uintptr_t a2 asm("a2") = (uintptr_t)(arg2);
    register uintptr_t a3 asm("a3") = (uintptr_t)(arg3);
    register uintptr_t a4 asm("a4") = (uintptr_t)(arg4);
    register uintptr_t a5 asm("a5") = (uintptr_t)(arg5);
    register uintptr_t a6 asm("a6") = (uintptr_t)(fid);
    register uintptr_t a7 asm("a7") = (uintptr_t)(ext);

    __asm__ volatile("ecall"
                 : "+r"(a0), "+r"(a1)
                 : "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(a6), "r"(a7)
                 : "memory");

    ret.error = a0;
    ret.value = a1;

    return ret;
}
